If you have eczema, rubbing your skin with a towel to get it dry may aggravate your eczema and lead to a flare-up. Rubbing produces friction which can irritate sensitive skin areas. It also removes your body's naturals oils. When drying you body after bathing, use a towel to pat your skin until it's partially dry. While your skin is still a bit damp, apply a moisturizer to lock in the bath's moisture.